81342531088

Names of 81342531088

• Cardinal: 81342531088 can be written as Eighty-one billion, three hundred forty-two million, five hundred thirty-one thousand and eighty-eight.

Scientific notation

• Scientific notation: 8.1342531088 × 10¹⁰

Factors of 81342531088

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7862

Divisors of 81342531088

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 169 182 208 338 364 593 676 728 1183 1186 1352 1456 2366 2372 2704 4151 4732 4744 7247 7709 8302 9464 9488 14494 15418 16604 18928 28988 30836 33208 50729 53963 57976 61672 66416 94211 100217 101458 107926 115952 123344 188422 200434 202916 215852 376844 400868 405832 431704 659477 701519 753688 801736 811664 863408 1224743 1318954 1403038 1507376 1603472 2449486 2637908 2806076 4297471 4898972 5275816 5612152 8573201 8594942 9797944 10551632 11224304 17146402 17189884 19595888 30082297 34292804 34379768 55867123 60164594 68585608 68759536 111734246 120329188 137171216 223468492 240658376 391069861 446936984 481316752 726272599 782139722 893873968 1452545198 1564279444 2905090396 3128558888 5083908193 5810180792 6257117776 10167816386 11620361584 20335632772 40671265544 81342531088
• Sum of all divisors σ(n): 195392279808
• Sum of proper divisors (its aliquot sum) s(n): 114049748720
• 81342531088 is an abundant number, because the sum of its proper divisors (114049748720) is greater than itself. Its abundance is 32707217632

Bases of 81342531088

• Binary: 1001011110000011001001000011000010000₂
• Hexadecimal: 0x12F0648610
• Base-36: 11D98QOG

Squares and roots of 81342531088

• 81342531088 squared (81342531088²) is 6616607363802246463744
• 81342531088 cubed (81342531088³) is 538211590187173958861334384873472
• The square root of 81342531088 is 285206.1203550863
• The cube root of 81342531088 is 4332.8390885193

Scales and comparisons

• 81,342,531,088 seconds is equal to 2,586 years, 22 weeks, 6 days, 11 hours, 31 minutes, 28 seconds.
• To count from 1 to 81,342,531,088 would take you about five thousand, one hundred seventy-two years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 81342531088 cubic inches would be around 361.1 feet tall.

Recreational maths with 81342531088

• 81342531088 backwards is 88013524318
• The number of decimal digits it has is: 11
• The sum of 81342531088's digits is 43
• More coming soon!